Improvement in spark-arresters for locomotives



M. B. MASON. Spark-Arrosters for Locomotives. 142,251.

Patented August 26, 1873..

UNITED STATES PATENT minion."-

MATTHEW B. MASON, OF KANSAS OITY, MISSOURI, ASSIeNOn TO IIIMSELF i i AND JOHN S. MGORUM.

`IWIPROVEMENTIN SPARK-AKRRESTERS lFRLOCOMO'VI'IVES.

Specification forming part of Letters Patent No. 142,251, dated August 26, 1873; application tiled July 25, 1873.

To all 'whom 'it may concern:

Be it known that I, MATTHEW B. MASON, of Kansas Gity, Jackson county, Missouri, have invented an Improved Spark-Arrester for Locomotives, of which the following is a specincation:

My invention is designed to arrest and precipitate into a hopper or other suitable receptacle, by means 'of down-turned spouts y further provide, opposite the ventages of the exhaust-nozzles, valves orflaps, which prevent the said nozzles throwing out dirty water when the enginesv are rst started, yet yield readilyto the issue of steam from the full exhaust. I further provide on the rear side of the petticoat a series of guards or fenders, which prevent injury to the llue side of the petticoat by the contact of particles of coal or other hard matters projected against I it by the force of the draft.

Figure 1 is a longitudinal section through the smoke-arch of a locomotive provided with my improved spark-arrester. Fig. 2 is a transverse vertical` Section of the same at the line x. Fig. 3 is a horizontal section at the line yy; and Fig. L is an enlarged axial section through theupper portion of one of the ex- Q haust-nozzles, the valve thereof being closed.

A may represent a smoke-arch of customary form; B, lower portion of the chimney leading from the same; G G,-discharge-noz zles of steam-exhaust,1 D D, spoutswhich y conduct from nozzles (J C downward `over an opening, a, in the iloor of the arch. Projecting a suitable distance into the nozzle C,

`and located above the pipe D, is a plate, c,

which servesto arrest a portion of the escaping steam and deflect it into said pipe D. By this means a sufcient blast is obtained through pipe D to insure all of the sparksY and cinders being carried down through opening a' into the receptacle provided for them beneath the smoke-arch. The nozzle C is also provided With a dei'lecting-plate, c', for a similar purpose; E, neck to Said opening, which enters a receptacle or hopper, F, which converges at bottom to a discharge-trap, G. This hopper may be suspended from the smoke-arch by bars f, or otherwise. `Dependin g from the saddle H of chimneyis a cylindrical wire-gauze petticoat, I, which terminates at bottom in a cylindrical shoe, J, pierced to receive "the tips of the exhaust-nozzle. Over the ventage or Outlet of each nozzle is arranged a hinged nap or valve, K or K', which is of sufficient weight and of such position as todeeot and beat down any water that may escape` fromthe cylinders at the rst turning on of the Steam, but to yield to the full head of exhaust steam when under complete headway. Lrare guardpieces of wrought-iron plate to protect the petticoat from being dented or broken in by the violent impact of coal and other hard fragments from the nues. These curved guard-plates or ribs may extend horizontally around the petticoat; but I prefer to arrange them in the Spiral or helical manner shown. It is not necessary for themto entirely sursurround the petticoat, as it is only the rear portion of the latter that requires their protection.

The pettic/o/at is `rpreferably made'in sec-l I claim as new and of my invention, and. or breaking by coal or other fragments from desire to secure by Letters Patentthe iiues striking against it, as set forth.

1. The down-turned spouts D D from the In testimony of which invention vI hereunto exhaust-nozzles C c C c', arranged to disset my hand.

charge through aperture a in the smoke-arch MATTHEW B. MASON. into a hopper or receptacle, F, having a' disehargetrap or valve, Gr. Attest:

2. The combination, with the pettieoat-pipe GEO. H. KNIGHT,

I, of iron guards L to protect it from denting JOHN KILOII. 

